Splitvolt 24A Splitter Switch for NEMA 10-30 to 14-50 — 24 Amp Auto Transfer, Color Display

The Splitvolt 24 Amp Splitter Switch lets you safely share a 240V dryer outlet with an EV charger, switching power automatically so you can charge at Level 2 without installing a new circuit.

If you have a 30A dryer outlet and want faster home EV charging without the expense and time of running a dedicated circuit, this plug-and-play device offers a practical alternative. It connects to your existing NEMA 10-30 dryer socket and gives you a NEMA 14-50 output for an EV charger while enforcing a 24A maximum so the original circuit isn’t overloaded. The unit includes a color display and LED indicators for instant status feedback, and it automatically prevents the dryer and EV charger from drawing power at the same time.

How does the Splitvolt switch prevent overloaded circuits?

The device monitors current draw and enforces a safe 24 amp limit on a 30A circuit by coordinating which appliance receives power. If the dryer is turned on, the switch automatically cuts power to the EV charger; when the dryer is off, charging resumes. This avoids simultaneous high-load draws that could trip breakers or damage wiring.

• Automatic transfer between dryer and EV charger to avoid concurrent loads
• Built-in current limiting to 24 amps to match the device rating
• Real-time monitoring via color display and LED status lights

Will this work with my EV or portable charger?

It works with many EVs and adjustable chargers that can be set to accept up to 24 amps on a 240V input and that use the common NEMA plug types supported. Confirm that your vehicle or portable EVSE can be limited to 24A before buying. If you’re unsure about compatibility, contact Splitvolt or check your charger/vehicle documentation first.

• Supports NEMA 10-30 dryer socket and NEMA 14-50 EV charger plug
• Requires an EV or charger that can be limited to 24A max output
• Works with many common Level 2 portable chargers when set to 24A

Do I need an electrician to install this Splitvolt device?

No hardwiring or new circuit installation is required — the Splitvolt splitter is plug-and-play. Simply plug the unit into your existing dryer outlet and plug your charger into the Splitvolt outputs. However, ensure your dryer outlet and wiring are in good condition and properly grounded before use.

• Plug-and-play — no home wiring modifications needed
• Compatible with existing NEMA 10-30 dryer outlets and plugs
• Recommend confirming outlet condition and grounding for safety

What information does the display provide during charging?

The Splitvolt includes a full-color display and LEDs that show voltage, current, kWh, and status so you can monitor charging in real time. This helps you track energy use and quickly spot any errors or interruptions. The visual feedback makes it easier to verify the unit is operating within the 24A limit.

• Full-color screen displays voltage, current and accumulated kWh
• LED status lights for instant operational feedback
• Clear readouts make troubleshooting and monitoring simple

Who is this for: The Splitvolt 24 Amp Splitter Switch is ideal for homeowners who already have a 240V NEMA 10-30 dryer outlet and want faster Level 2-style charging without running a new circuit. It suits EV drivers with portable or adjustable chargers that can be limited to 24A, DIY-minded users who prefer a plug-and-play solution, and anyone looking to avoid electrician costs while maintaining safe, monitored charging. Do confirm your charger or vehicle supports a 24A setting and that your dryer outlet wiring is in good condition before purchase.